[clang-tools-extra] [clang-tidy] Preserve line endings in macro-to-enum fixes (PR #202054)

[Baranov Victor via cfe-commits]

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@@ -0,0 +1,3 @@
+// RUN: %python -c "from pathlib import Path; Path(r'%/t.cpp').write_bytes(b'#define RED 1\r\n#define GREEN 2\r\n')"
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vbvictor wrote:

Please add explanation in file why it is so wierd and what we check.

https://github.com/llvm/llvm-project/pull/202054